EXPORT void
video_mix_over_gl( rgba_frame_gl *out, rgba_frame_gl *a, rgba_frame_gl *b, float mix_b ) {
// Really, this is almost exactly the same code as video_mix_cross_gl; the two
// should probably be combined (difference is just the shader text)
GQuark shader_quark = g_quark_from_static_string( "cprocess::video_mix::over_shader" );
// Gather the mix factor
mix_b = clampf(mix_b, 0.0f, 1.0f);
void *context = getCurrentGLContext();
gl_shader_state *shader = (gl_shader_state *) g_dataset_id_get_data( context, shader_quark );
if( !shader ) {
// Time to create the program for this context
shader = g_new0( gl_shader_state, 1 );
shader->program = video_create_filter_program( over_shader_text, "Video mix over shader" );
shader->mix_b_uniform = glGetUniformLocation( shader->program->program, "mix_b" );
g_dataset_id_set_data_full( context, shader_quark, shader, (GDestroyNotify) destroy_shader );
}
glUseProgram( shader->program->program );
glUniform1f( shader->mix_b_uniform, mix_b );
video_render_gl_frame_filter2( shader->program, out, a, b );
}
EXPORT void
video_mix_cross_gl( rgba_frame_gl *out, rgba_frame_gl *a, rgba_frame_gl *b, float mix_b ) {
GQuark shader_quark = g_quark_from_static_string( "cprocess::video_mix::crossfade_shader" );
g_debug( "In video_mix_cross_gl, mix_b=%f", mix_b );
// Gather the mix factor
mix_b = clampf(mix_b, 0.0f, 1.0f);
void *context = getCurrentGLContext();
gl_shader_state *shader = (gl_shader_state *) g_dataset_id_get_data( context, shader_quark );
if( !shader ) {
// Time to create the program for this context
shader = g_new0( gl_shader_state, 1 );
shader->program = video_create_filter_program( crossfade_shader_text, "Video mix crossfade shader" );
shader->mix_b_uniform = glGetUniformLocation( shader->program->program, "mix_b" );
g_dataset_id_set_data_full( context, shader_quark, shader, (GDestroyNotify) destroy_shader );
}
glUseProgram( shader->program->program );
glUniform1f( shader->mix_b_uniform, mix_b );
video_render_gl_frame_filter2( shader->program, out, a, b );
}
amglue_Source *
amglue_source_get(
GSource *gsrc,
GSourceFunc callback)
{
amglue_Source *src;
g_assert(gsrc != NULL);
src = (amglue_Source *)g_dataset_id_get_data(gsrc, AMGLUE_SOURCE_QUARK);
if (!src)
src = amglue_source_new(gsrc, callback);
else
amglue_source_ref(src);
return src;
}
/**
* clutter_binding_pool_get_for_class:
* @klass: a #GObjectClass pointer
*
* Retrieves the #ClutterBindingPool for the given #GObject class
* and, eventually, creates it. This function is a wrapper around
* clutter_binding_pool_new() and uses the class type name as the
* unique name for the binding pool.
*
* Calling this function multiple times will return the same
* #ClutterBindingPool.
*
* A binding pool for a class can also be retrieved using
* clutter_binding_pool_find() with the class type name:
*
* |[
* pool = clutter_binding_pool_find (G_OBJECT_TYPE_NAME (instance));
* ]|
*
* Return value: (transfer none): the binding pool for the given class.
* The returned #ClutterBindingPool is owned by Clutter and should not
* be freed directly
*
* Since: 1.0
*/
ClutterBindingPool *
clutter_binding_pool_get_for_class (gpointer klass)
{
ClutterBindingPool *pool;
g_return_val_if_fail (G_IS_OBJECT_CLASS (klass), NULL);
if (G_UNLIKELY (key_class_bindings == 0))
key_class_bindings = g_quark_from_static_string ("clutter-bindings-set");
pool = g_dataset_id_get_data (klass, key_class_bindings);
if (pool)
return pool;
pool = clutter_binding_pool_new (G_OBJECT_CLASS_NAME (klass));
g_dataset_id_set_data_full (klass, key_class_bindings,
pool,
g_object_unref);
return pool;
}
